This article details how the sun may be going in to a quiet phase that may well bring about a global cooling (maybe Time can re-use its scare article from 1974).

In the mean time, I’d like to get ahead of the curve in blaming America for using up the sun. Clearly, the air-quality improvements we’ve made in the last 40 years have allowed us to use more than our fair share of sun light and heat, not to mention our extensive use of solar power that is clearly pulling in even more solar energy that could (and should) be either saved or distributed among countries that have no solar energy programs.